30409036 has 36 divisors (see below), whose sum is σ = 63608272. Its totient is φ = 12459744.

The previous prime is 30409031. The next prime is 30409037. The reversal of 30409036 is 63090403.

It is a self number, because there is not a number n which added to its sum of digits gives 30409036.

It is not an unprimeable number, because it can be changed into a prime (30409031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13786 + ... + 15838.

Almost surely, 2^30409036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30409036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31804136).

30409036 is an abundant number, since it is smaller than the sum of its proper divisors (33199236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30409036 is a wasteful number, since it uses less digits than its factorization.

30409036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2085 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30409036 is about 5514.4388653788. The cubic root of 30409036 is about 312.1290694345.

Adding to 30409036 its reverse (63090403), we get a palindrome (93499439).

The spelling of 30409036 in words is "thirty million, four hundred nine thousand, thirty-six".